Safety and Immunogenicity of Two Doses of Monovalent Inactivated Influenza Vaccine That is Adjuvanted With MF59C.1 (MF59) and Uses a Surface Antigen From a Potential Pandemic Virus Strain Candidate (H5N1) in Adult and Elderly Subjects

The present study will evaluate the immunogenicity, safety and tolerability of two doses of monovalent inactivated influenza vaccine that is adjuvanted with MF59C.1 (MF59) and uses a surface antigen from a potential pandemic virus strain candidate (H5N1) in Adult and Elderly Subjects.

A Phase II, Open-label, Multi-center Study to Evaluate the Immunogenicity, Safety and Tolerability of Two Doses of Monovalent Inactivated Influenza Vaccine That is Adjuvanted With MF59C.1 (MF59) and Uses a Surface Antigen From a Potential Pandemic Virus Strain Candidate (H5N1) in Adult and Elderly Subjects

Subjects aged 18 years of age and older who are mentally competent and who have signed an informed consent form after having received a detailed explanation of the study protocol;

In good health as determined by:

Medical history,

Physical examination,

Clinical judgment of the Investigator;

Able to understand and comply with all study procedures and to complete study diaries, can be contacted, and will be available for all study visits.

Exclusion Criteria:

Previous receipt of any H5 vaccine;

Receipt of another investigational agent within 4 weeks, or before completion of the safety follow-up period in another study, whichever is longer, prior to enrollment and unwilling to refuse participation in another clinical study through the end of the study;

Females of childbearing potential who refuse to use an acceptable method of birth control for the duration of the study. Adequate contraception is defined as hormonal (e.g., oral, injection, transdermal patch, implant, cervical ring), barrier (e.g., condom with spermicide or diaphragm with spermicide), intrauterine device (e.g., IUD), or monogamous relationship with vasectomized partner who has been vasectomized for 6 months or more prior to the subject's study entry;

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Please refer to this study by its ClinicalTrials.gov identifier: NCT00841646